Is this thing just a detuned KLX 300 with a smaller cylinder and piston? Can I put a 300 cylinder and piston in it and have a street legal klx 300r? Are there aftermarket exhaust systems for this bike? Can you still do the pumper carb mod to this bike? Any alternative to the hunk o junk looking rear plate holder? Is the subframe welded on the frame like the klx was or does it unbolt? I had a 2005 klx 300R and loved that bike im currently riding a 2003 kx 250 that if and when she blows I might go after this klx 250 S ...cuz it will do what I want and give me a plate.